Home / 87,981.53-131,951.92-52,452.80

Finding the Fourth Proportional to 87,981.53, 131,951.92 and 52,452.80

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Solution

The fourth proportional to 87,981.53, 131,951.92 and 52,452.80 is: 78,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,981.53 : 131,951.92 = 52,452.80 : x
  2. Step 2: Convert to fraction form
    87,981.53/131,951.92 = 52,452.80/x
  3. Step 3: Cross multiply
    87,981.53x = 131,951.92 × 52,452.80
  4. Step 4: Simplify right side
    87,981.53x = 6,921,247,669.38
  5. Step 5: Solve for x
    x = 6,921,247,669.38/87,981.53
  6. Step 6: Final answer
    x = 78,667.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.